In the interview, Rhimes revealed there are no plans for a Scandal spinoff:

Scandal is done. I felt we were coming to our end is because we’ve told the stories I wanted to tell. We’ve told the canon of Olivia Pope in the way that I wanted to tell it. So I don’t feel like we have stories that we didn’t get to tell that I wanted to tell.”

But what about the finale? Will it offer closure? Rhimes says:

I mean, yes, the story is wrapped up and yes, the audience gets to imagine some of what happens next for the characters.”